I do not have factory restore any more so F9 does nothing. My hard drive is partitioned into C and D. I downloaded Windows 7 iso and the Microsoft program allowing it to go onto a flash drive. (I also have Windows 7 disc and another computer.) But it installed Windows on D drive so now I have Windows on both C and D drives. It didn't reformat either. I want to reformat both C and D partitions and reinstall Windows. I know I need a bootable USB drive, though right now I don't know how to get into the bios to let it boot from USB. I've seen a few programs that let you make the USB stick bootable and I guess WinToFlash is one. But how do I get both C and D formatted and empty first? Thanks